Home / 280,020.48-386,501.76-159,232.32

Finding the Fourth Proportional to 280,020.48, 386,501.76 and 159,232.32

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Solution

The fourth proportional to 280,020.48, 386,501.76 and 159,232.32 is: 219,782.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,020.48 : 386,501.76 = 159,232.32 : x
  2. Step 2: Convert to fraction form
    280,020.48/386,501.76 = 159,232.32/x
  3. Step 3: Cross multiply
    280,020.48x = 386,501.76 × 159,232.32
  4. Step 4: Simplify right side
    280,020.48x = 61,543,571,928.88
  5. Step 5: Solve for x
    x = 61,543,571,928.88/280,020.48
  6. Step 6: Final answer
    x = 219,782.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.